My truck with the dv's got way to hot to quick towing a load empty it was fine but just to much fuel for what I got. I talked to Bill Heath and he told me everypump is different some will handle it others won't I think I need the turbo master and the 14 cm houseing and he recommende I go to the 181's.

Smokindodge12v I think you should have the 181's I did not think the cummins in the dodges ever came with 191's but I do not know for sure. I sent you a pm